Changes in N, K, and Fatty Acid Composition of Black Cumin Seeds Affected by Nitrogen Doses under Supplemental Potassium Application

Table 3

Effects of N doses and K application on seed yield, oil content, and oil yield of black cumin in 2011 and 2012.

K application	N level	Seed yield (kg ha^−1)		Oil content (%)		Oil yield (kg ha^−1)
		2011	2012	2011	2012	2011	2012
Control	Control	976	797	44.3	34.5	433	275
	30	1053	851	42.6	32.6	448	277
	60	1037	887	41.9	31.4	434	279
	90	1115	885	40.8	30.3	455	269
	Mean	1045	855	42.4	32.2	443	275
K+	Control	1001	863	45.5	34.6	455	299
	30	1027	859	44.9	34.4	462	296
	60	1245	950	43.1	32.6	536	310
	90	1183	991	42.8	30.3	506	300
	Mean	1114	916	44.1	33.0	490	301
LSD0.05		ns	34.5	ns	ns	ns	ns

ns: not significant.